<!DOCTYPE html>
<html>
<head>
    <meta charset="UTF-8">
    <title>登录失败</title>
    <style>
        body {
            margin: 0;
            padding: 20px;
            background-color: rgba(231, 76, 60, 0.9);
            color: white;
            font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
            border-radius: 10px;
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            height: 100vh;
            box-sizing: border-box;
        }

        .icon {
            font-size: 48px;
            margin-bottom: 10px;
        }

        .message {
            font-size: 18px;
            text-align: center;
        }

        @keyframes fadeIn {
            from { opacity: 0; }
            to { opacity: 1; }
        }

        body {
            animation: fadeIn 0.3s ease-in;
        }
    </style>
</head>
<body>
    <div class="icon">✕</div>
    <div class="message">校园网登录失败，请检查用户名和密码！</div>
</body>
</html> 